Feature: 1. Health Care: Smart health ring adopted advanced smart technology to help you monitor your health data in real time, to gain a clearer understanding of the factors that affect health and exercise ability. 2. Sleep Monitor: According to the proportion of REM, light sleep and deep sleep during the whole sleep period, the smart ring health tracker will score the sleep quality and give appropriate suggestions. 3. IP68 Waterproof: With its IP68 waterproof rating, this smart health ring is resistant to water, sweat, and dust, providing reliable performance during swimming, showering, and other water related activities. 4. Fitness Ring: Achieve your fitness goals with this fitness ring. It accurately tracks your distance covered, calories burned, and active minutes, keeping you aware of your progress throughout the day. 5. Excellent Metal: Crafted with a blend of aluminum alloy and stainless steel, this smart ring is durable, lightweight, and comfortable to wear, ensuring long lasting performance. Battery life 3‑5 days of normal use. Specification: Item Type: Smart Ring Material: Aluminum Alloy, Stainless Steel Battery Type: 18mAh Lithium Battery(Included) Battery Life: Approx. 3-5 days Charging Time: Approx. 30-60 minutes. Package List: 1 x Smart Ring 1 x USB Charging Cable 1 x User Manual 2 x Storage Boxes